1290948222 has 16 divisors (see below), whose sum is σ = 2644870032. Its totient is φ = 419820480.

The previous prime is 1290948173. The next prime is 1290948229. The reversal of 1290948222 is 2228490921.

It is a super-2 number, since 2×1290948222² = 3333094623769922568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290948229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2623633 + ... + 2624124.

It is an arithmetic number, because the mean of its divisors is an integer number (165304377).

Almost surely, 2^1290948222 is an apocalyptic number.

1290948222 is an abundant number, since it is smaller than the sum of its proper divisors (1353921810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1290948222 is a wasteful number, since it uses less digits than its factorization.

1290948222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5247803.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 1290948222 is about 35929.7679090751. The cubic root of 1290948222 is about 1088.8538922522.

The spelling of 1290948222 in words is "one billion, two hundred ninety million, nine hundred forty-eight thousand, two hundred twenty-two".